Circular-weaving loom



June 17, 1930. c. sERY 1,765,246

CIRCULAR WEAVING LOOM Filed Feb. 23, 1929 Patented June 17, 1930 UNI-TEDSTATES PATENT OFFICE CLAUDE sRY, or AIX-EN-PROVENCE, FRANQE, AssIGNoRrro SOCIT A :aEsPoNsA- BILIT LIMITE ETABLISSEMENTS no'rnrrss," oF rams,FRANCE, A FnENcH COMPANY cIBcULAn-WEAVING `Loon:

Application led February 23, 1929 Serial No. 342,209, and iin FranceMarch 6, 1928.

shuttle being provided with means adapted to complete this motion.

The mechanism according tov my invention comprises an electro-magnet foreach warp thread. the armature of said magnet being provided with threadguiding means.`

In the annexed drawings:

Fig. 1 is a diagrammatical radial section of a circular weaving loomhaving a selector according to my invention.

Fig. 2 is a section on line II-II of Fig. l.

Fig. 3 is a fragmental plan View of a card adapted to control theelectromagnets of the loom.

Referring to Figs. 1 and 2, 34 is the other cylindrical member of theloom, having a groove 210 in which slide the outer skates of theshuttles. The latter are provided With separating cams 38 adapted tocomplete the warp thread movements, as will be described later on.

'l`he warp threads such as 89 extend radially with respect to the loomaxis. They are guided byl fixed guides 75 from which they pass through amovable guide 92 fixed to a spring 94 having its end fixed to member 34at 211. Spring 94 also carries an armature 93 under which is placed anelectromagnet 95 fixed onto a flange 35 integral with member- 34. A slit212 permits the passage of thread 89, as shown.

Vhen spring 94 is free (i. e. when no current fiows throughelectromagnet 95) the armature 92 is at its uppermost position, shown infull lines Fig. 1 and the thread 89 is somewhat over the plane of thetips of the cams 38 of the shuttles. The thread is thus lifted by thecam of the first incoming shuttle and passes over the same.

When electromagnet 95 is energized, the thread is lowered below the tipsof cams 38 and passes under the same, as it will be readly understood.

The control of the electromagnets of the loom is preferably effected, asshown, by means of spring contacts such as 97 cooperating with fixedcontacts 96 and provided with projections 98 under which passes acard 99having perforations corresponding to the projections 98. When oneprojection 98 is over a perforation of card 99, the corresponding spring97 is free and the circuit of the corresponding electromagnet isinterrupted. On the contrary, when a projection 98 is not over aperforation, the corresponding spring 97 is maintained in cont-act withterminal 96 and the corresponding electromagnet is energized.

The card 99 may be driven by any suitable mechanism.

I claim:

1. In circular weaving looms of the kind in which the ywarp threads aregiven a small initial motion which is completed by means carried by t-heshuttles, a selector mechanism comprising movable thread guides throughwhich the warp threads are passed, and fixed electro-magnets adapted toactuate said thread guides withoutv at the same time actuatmg the Warpthread bobbins.

2. A selector mechanism as claimed inclaim 1, comprising for each warpthread a. thread guide; a spring support to which saidthread guide isfixed; an armature also fixed to said spring support; and anelectromagnet adapted to actuate said armature, said spring supportbeing adjusted in such a way that, at the free posit-ion thereof, saidthread guide guides the Warp thread over the shuttles and, on thecontrary; at the depressed position thereof, said thread guide guidesthe Warp thread under the shuttles.

3. A selector mechanism as claimed in claim 1, wherein theelectromagnets ofthe CLAUDE SRY.

